我试图通过链接https://github.com/kubernetes/sample-controller运行Kubernetes样本控制器示例。我在Ubuntu 18.04系统上设置了repo，并且能够构建样本控制器包。但是，当我尝试运行go包时，我遇到了一些错误，无法调试问题。有人可以帮我这个吗？
以下是我遵循的步骤：
user@ubuntu-user:~$ go get k8s.io/sample-controller
user@ubuntu-user:~$ cd $GOPATH/src/k8s.io/sample-controller
这是我在运行控制器时遇到的错误：
user@ubuntu-user:~/go/src/k8s.io/sample-controller$ ./sample-controller -kubeconfig=$HOME/.kube/config
E0426 15:05:57.721696 31517 reflector.go:125] k8s.io/sample-controller/pkg/generated/informers/externalversions/factory.go:117: Failed to list *v1alpha1.Foo: the server could not find the requested resource (get foos.samplecontroller.k8s.io)
Kubectl版本：
user@ubuntu-user:~$ kubectl version
Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:11:31Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:02:58Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"```
我已经复制了你的问题。本教程中的命令顺序是错误的。
在这种情况下，由于缺少资源（samplecontroller），您收到此错误
$ ./sample-controller -kubeconfig=$HOME/.kube/config
E0430 12:55:05.089624 147744 reflector.go:125] k8s.io/sample-controller/pkg/generated/informers/externalversions/factory.go:117: Failed to list *v1alpha1.Foo: the server could not find the requested resource (get foos.samplecontroller.k8s.io)
^CF0430 12:55:05.643778 147744 main.go:74] Error running controller: failed to wait for caches to sync
goroutine 1 [running]:
k8s.io/klog.stacks(0xc0002feb00, 0xc000282200, 0x66, 0x1f5)
/usr/local/google/home/user/go/src/k8s.io/klog/klog.go:840 +0xb1
k8s.io/klog.(*loggingT).output(0x2134040, 0xc000000003, 0xc0002e12d0, 0x20afafb, 0x7, 0x4a, 0x0)
/usr/local/google/home/user/go/src/k8s.io/klog/klog.go:791 +0x303
k8s.io/klog.(*loggingT).printf(0x2134040, 0x3, 0x14720f2, 0x1c, 0xc0003c1f48, 0x1, 0x1)
/usr/local/google/home/user/go/src/k8s.io/klog/klog.go:690 +0x14e
k8s.io/klog.Fatalf(...)
/usr/local/google/home/user/go/src/k8s.io/klog/klog.go:1241
main.main()
/usr/local/google/home/user/go/src/k8s.io/sample-controller/main.go:74 +0x3f5
您可以验证是否未创建此API
$ kubectl api-versions | grep sample
$ <emptyResult>
在本教程中，您可以创建自定义资源定义
$ kubectl create -f artifacts/examples/crd.yaml
customresourcedefinition.apiextensions.k8s.io/foos.samplecontroller.k8s.io created
现在您可以搜索此CRD，它现在将在列表中。
$ kubectl api-versions | grep sample
samplecontroller.k8s.io/v1alpha1
下一步是创建Foo资源
$ kubectl create -f artifacts/examples/example-foo.yaml
foo.samplecontroller.k8s.io/example-foo created
这些命令不会创建任何对象。
user@user:~/go/src/k8s.io/sample-controller$ kubectl get all
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP XX.XXX.XXX.XX <none> 443/TCP 14d
运行./sample-controller -kubeconfig=$HOME/.kube/config后将创建所有资源
user@user:~/go/src/k8s.io/sample-controller$ ./sample-controller -kubeconfig=$HOME/.kube/config
user@user:~/go/src/k8s.io/sample-controller$ kubectl get all
NAME READY STATUS RESTARTS AGE
pod/example-foo-6cbc69bf5d-8k59h 1/1 Running 0 43s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.39.240.1 <none> 443/TCP 14d
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deployment.apps/example-foo 1 1 1 1 43s
NAME DESIRED CURRENT READY AGE
replicaset.apps/example-foo-6cbc69bf5d 1 1 1 43s
正确的顺序：
$ go get k8s.io/sample-controller
$ cd $GOPATH/src/k8s.io/sample-controller
$ go build -o sample-controller .
$ kubectl create -f artifacts/examples/crd.yaml
$ kubectl create -f artifacts/examples/example-foo.yaml
$ ./sample-controller -kubeconfig=$HOME/.kube/config
$ kubectl get deployments
你从自述文件中运行了这两个命令吗？
# create a CustomResourceDefinition
kubectl create -f artifacts/examples/crd.yaml
# create a custom resource of type Foo
kubectl create -f artifacts/examples/example-foo.yaml